Now we cover your escape.
Know your exit and work towards it. If the attack is drawn out more than a few seconds, you are going to get really tired. There is no good way for it to end once they swarm on you. You must escape. Use every weapon and trick at your disposal.
You have a flag stuck in your belt in the back, like a tail. You also have a goal that represents the escape. It could be a door or just a spot marked out somehow. Your partners are between you and the goal. Their goal is to get your flag before you get to the goal.
For you to win, you must keep them in front of you, yet you must make your way to the exit. No one gets to punch or tackle you, though you probably should be allowed to grab and push them.
That's it! It won't take long to realize how easy it is for two or more people to get around you where you are an easy target. That awareness is the first step.